GB976356A - Improvements in and relating to the quantitative and qualitative determination of gases for the testing of materials - Google Patents

Improvements in and relating to the quantitative and qualitative determination of gases for the testing of materials

Info

Publication number
GB976356A
GB976356A GB10807/62A GB1080762A GB976356A GB 976356 A GB976356 A GB 976356A GB 10807/62 A GB10807/62 A GB 10807/62A GB 1080762 A GB1080762 A GB 1080762A GB 976356 A GB976356 A GB 976356A
Authority
GB
United Kingdom
Prior art keywords
gas
pump
chamber
ducts
measuring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB10807/62A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Balzers Patent und Beteiligungs AG
Original Assignee
Balzers Patent und Beteiligungs AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Balzers Patent und Beteiligungs AG filed Critical Balzers Patent und Beteiligungs AG
Publication of GB976356A publication Critical patent/GB976356A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
    • G01N21/3504—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing gases, e.g. multi-gas analysis
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
    • G01N1/40—Concentrating samples
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
    • G01N21/3504—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing gases, e.g. multi-gas analysis
    • G01N21/3518—Devices using gas filter correlation techniques; Devices using gas pressure modulation techniques
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N25/00—Investigating or analyzing materials by the use of thermal means
    • G01N25/18—Investigating or analyzing materials by the use of thermal means by investigating thermal conductivity
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/20—Metals
    • G01N33/202—Constituents thereof
    • G01N33/2022—Non-metallic constituents
    • G01N33/2025—Gaseous constituents
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N7/00—Analysing materials by measuring the pressure or volume of a gas or vapour
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/22—Devices for withdrawing samples in the gaseous state
    • G01N1/2226—Sampling from a closed space, e.g. food package, head space
    • G01N2001/2235—Sampling from a closed space, e.g. food package, head space over a melt, e.g. furnace
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
    • G01N1/40—Concentrating samples
    • G01N1/4022—Concentrating samples by thermal techniques; Phase changes
    • G01N2001/4033—Concentrating samples by thermal techniques; Phase changes sample concentrated on a cold spot, e.g. condensation or distillation
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/20—Metals
    • G01N33/205—Metals in liquid state, e.g. molten metals

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Immunology (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Pathology (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Investigating And Analyzing Materials By Characteristic Methods (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)

Abstract

976,356. Gas analysis. BALZERS PATENTUND LIZERZ-ANSTALT. March 21, 1962 [Aug. 12, 1961], No. 10807/62. Heading G1B. A gas analysis apparatus comprises a rotary pump and an instrument for measuring a physical parameter connected by a duct directly to the exhaust chamber of the pump, whereby the pressure in and volume of the combined duct and exhaust chamber pulsate. As shown in Fig. 1, gas from a high vacuum hot extraction furnace 1 is drawn off by means of diffusion pump 4 and thence is drawn into rotary pump 2. The exhaust chamber 8 of the latter is connected by means of ducts (which form with said chamber a measuring chamber) to a heat conductivity measuring device 16, e.g. for H 2 determination. A pressure gauge 12 is also provided which gives a mean value and may be directly calibrated in units of gas quantity, e.g. a U-tube manometer or electrical manometer. The ducts may if desired by formed in a metal block in heat conducting relationship to the pump. Valve 17 opens into a further series of ducts connected to an infrared detector 26, e.g. for CO determination. An auxiliary rotary pump 22 is provided whereby initially at least the measuring chamber, andpreferably all, the ducts, may be evacuated. Thereafter valves 14, 17, 19 and 20 are closed, pumps 2 and 4 being operated but the specimen in the furnace not being heated. When heat is applied, gases begin to enter the measuring chamber and the quantity and thermal conductivity of the gas are measured. Where only H 2 , 0 2 and/or N 2 are present, the latter result is a measure of the H 2 content. The valve 17 is opened and the infra-red absorption of the gas measured. Alternatively a gas not absorbing infra-red may be allowed to enter via valve 19 before the measurement whereby the greater part of the gas tested'is rinsed into the instrument 19. As shown in Fig. 2, a throttling element 33 may be inserted into the exhaust duct of the pump 2.
GB10807/62A 1961-08-12 1962-03-21 Improvements in and relating to the quantitative and qualitative determination of gases for the testing of materials Expired GB976356A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT626561A AT237348B (en) 1961-08-12 1961-08-12 Continuously operating pump arrangement with at least one rotary pump

Publications (1)

Publication Number Publication Date
GB976356A true GB976356A (en) 1964-11-25

Family

ID=3584537

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10807/62A Expired GB976356A (en) 1961-08-12 1962-03-21 Improvements in and relating to the quantitative and qualitative determination of gases for the testing of materials

Country Status (6)

Country Link
US (1) US3229500A (en)
AT (1) AT237348B (en)
CH (1) CH395588A (en)
DE (1) DE1235631B (en)
GB (1) GB976356A (en)
NL (2) NL277069A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106248724A (en) * 2016-07-19 2016-12-21 西安交通大学 A kind of turbine blade cooling duct heat transfer experiment system with ball-and-socket/ball male structure

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2199406A6 (en) * 1972-09-14 1974-04-05 Siderurgie Fse Inst Rech
GB1454602A (en) * 1974-05-02 1976-11-03 Jenkins A Apparatus for checking the contents of closed containers
GB2251685A (en) * 1991-01-11 1992-07-15 Marconi Gec Ltd Gas monitoring apparatus
US6964187B2 (en) * 2001-03-20 2005-11-15 Mykrolis Corporation Vacuum sensor

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2393650A (en) * 1939-06-14 1946-01-29 Cons Eng Corp Apparatus for analyzing hydrocarbons
US2296030A (en) * 1940-02-09 1942-09-15 Gen Electric Gas analysis apparatus
US2641922A (en) * 1944-10-16 1953-06-16 Alonzo L Smith Core analysis
US2670625A (en) * 1948-09-14 1954-03-02 Atmotrol Corp Continuous reading specific gravity indicator
US2649011A (en) * 1949-07-29 1953-08-18 Standard Oil Dev Co Analytical sample cell
US2795132A (en) * 1955-03-25 1957-06-11 Nat Res Corp Apparatus for measuring gas in molten metals
US2991684A (en) * 1955-08-02 1961-07-11 Max Planck Inst Eisenforschung Method of supervising metallurgical and metal melting processes
US2904076A (en) * 1955-10-22 1959-09-15 Engel Pulsation dampener
US2987912A (en) * 1956-06-01 1961-06-13 Mine Safety Appliances Co Method and apparatus for measurement of gas dissolved in a liquid
US2942470A (en) * 1956-09-04 1960-06-28 Huettenwerk Oberhausen Ag Apparatus for measuring the melt temperature of air-blast converters
US3055207A (en) * 1958-04-29 1962-09-25 Hartmann & Braun Ag Gas analyser

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106248724A (en) * 2016-07-19 2016-12-21 西安交通大学 A kind of turbine blade cooling duct heat transfer experiment system with ball-and-socket/ball male structure
CN106248724B (en) * 2016-07-19 2019-02-05 西安交通大学 It is a kind of with ball-and-socket/ball male structure turbine blade cooling duct heat transfer experiment system

Also Published As

Publication number Publication date
CH395588A (en) 1965-07-15
US3229500A (en) 1966-01-18
NL131168C (en) 1900-01-01
NL277069A (en) 1900-01-01
DE1235631B (en) 1967-03-02
AT237348B (en) 1964-12-10

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